Three-Dimensional Simulation Principle Of Tufted Carpet-1

Appearance analysis of tufted carpet Tufted carpet is a special fabric with piles through the reciprocating mechanical movement of tufting needles to form yarns through the base fabric; at the same time, during the tufting process, By changing the amount of yarn fed to generate loops of different heights, and finally form a multi-loop high-tufted carpet with embossed surface [5]. The basic structure of tufted carpet is shown in Figure.

It can be seen that the pile loops of tufted carpets are planted and attached to the carpet base fabric. They are not arranged neatly and regularly, but are deflected and deformed by the extrusion of adjacent pile loops after the process stages of tufting and finishing, etc. ( 6]. In addition, the force deformation on the space structure of the pile loop is extremely complex and has a certain degree of randomness. It is further found that there are two main types of deformation of the pile loop: the deformation of the pile itself caused by the tension of the yarn during the loop forming process; the pile loop as a whole is squeezed by other pile loops based on the original stitch position. Random deflection. Considering that the pile loop force is complicated, and the force of flexible yarn fabric is difficult to study, this paper mainly simulates the appearance of tufted carpet for the second kind of deflection deformation. In addition, when the tufted carpet is actually produced, the pile loop is woven by multiple strands of single yarn twisted and then fed into the tufted carpet loom. In order to improve the simulation efficiency, this paper regards the pile loop as a single strand of untwisted yarn. Weaving. At the same time, the tufted carpet structure only considers the simulation of the base fabric, while the adhesive layer and the backing play the role of protecting and fixing the pile loop. The appearance simulation of the tufted carpet in the article does not consider the simulation of the two. At present, the base fabric of tufted carpets is mostly polypropylene woven base fabric and non-woven base fabric. In this paper, the base fabric is simplified to a rectangular parallelepiped model with a certain thickness, and the base fabric is simulated by Mr. Shi, and then the tufting process is completed on the base fabric.

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